44145989047 has 2 divisors, whose sum is σ = 44145989048. Its totient is φ = 44145989046.

The previous prime is 44145989009. The next prime is 44145989093. The reversal of 44145989047 is 74098954144.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44145989047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44145989347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22072994523 + 22072994524.

It is an arithmetic number, because the mean of its divisors is an integer number (22072994524).

Almost surely, 2^44145989047 is an apocalyptic number.

44145989047 is a deficient number, since it is larger than the sum of its proper divisors (1).

44145989047 is an equidigital number, since it uses as much as digits as its factorization.

44145989047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5806080, while the sum is 55.

The spelling of 44145989047 in words is "forty-four billion, one hundred forty-five million, nine hundred eighty-nine thousand, forty-seven".